This nozzle is for the PolarStar Fusion Engine. This nozzle allows you to regulate your maximum FPS output based on your barrel.

The High Flow Nozzle is pictured above assembled into a Fusion Engine.

The following is a diagram showing the approximate FPS output of the silver nozzle corresponding to each of the following barrel lengths with .20g BBs at max input pressure 120PSI:
275mm will yield ~446 FPS
375mm will yield ~494 FPS
509mm will yield ~514 FPS

We will be offering international shipping for all PolarStar products.
Please email us at sales@ampedairsoft.com to discuss further shipping details.